ELECTRICAL CHARACTERISTICS

(All the following parameters are specified @ 27°C and V5/12 = 12V

±5%, unless otherwise specified.)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Main power supply

4.5

13.2

V

HVP

(1)

Output positive Voltage

≥ 8

27

18

35

35

V

V

≥ 8

27

18

70

35

V

V

HVripple

HVP, HVM ripple

Characterized only, Not Tested

External filter cap. 100nF

0.8

V

I, hvp

Output current (see figure 1)

I, hvm

Time to operating condition

5

ms

(2)

Switching Frequency

Refer to Block diagram

page1/10

300

kHz

Boost transistor ON resistance

4

Ω

Boost transistor current limiting

850

mA

Minimum OpAmp supply

Voltage (HVP if externally

given)

Double Supply

V512

+4

V

Single Supply

V512

+4

V

DC gain

OpAmp DC gain

130

dB

GBW

OpAmp Gain Bandwidth

product

Cload 0.4nF to 24nF

Double Supply Voltage

500

KHz

DCinp

OpAmp Input dynamic voltage

Double supply

-3.5

4.5

V

Single supply

1.2

5

V

OpAmp Output dynamic voltage

Capacitive load

HVM

HVP

V

OpAmp Bias supply current

(both)

|HVP| = |HVM| = 35V

9

mA

OpAmp Dynamic Output

Average current with external

supply

-75

+75

mA

PSRR,P

OpAmp Positive power supply

rejection ratio

@ 50kHz not tested in production

-50

dB

PSRR,N

OpAmp Negative power supply

rejection ratio

@ 50kHz not tested in production

-50

dB

OpAmp Load capacitance

range

Voltage mode Gain min 20dB

0.4

24

nF

OpAmp Integration capacitance

Charge mode Gain min 20dB

0.4

24

nF

K

OpAmp Current ratio

OUTK/OUT1

9.8

10

10.2

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

V512

Supply voltage pin 17 referred to Ground

14

V

HVP

Positive high voltage referred to HVM

75

V

HVM

Negative high voltage referred to Ground

-38

V

IN A&B

Amplifier input voltage common mode

±6V

∆V

Maximum difference between pin 20 and pins 8, 9, 16 & 17

17

V

Operative Ambient Temperature

-20 to +80

°C

Storage Temperature

-40 to +125

°C

All the voltage value are referred to ground unless otherwise specified.

L6660

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